Catherine Zeta-Jones relaxes by knitting.

The 'Mask of Zorro' actress shocked 'Access Hollywood' reporter Tim Vincent when he visited her husband Michael Douglas on a movie set and she was working up a frantic pace with some needles and yarn.

Tim revealed: "I've had the pleasure of interviewing Michael Douglas a few times. He has a great relationship with Catherine.

"I first met her on the set of a film he was directing. She was hanging on set knitting.

"I sat with her off-camera as she wanted to know all about British news. They are a lovely couple."

Tim, 39, also revealed Madonna was "super flirty" when they met, but he would never want to date the pop superstar.

He added in an interview with the Daily Mirror newspaper: "Madonna was another remarkable interview. She was definitely super flirty but then I think she'd flirt with just about anybody or anything.

"She told me she loved the British accent, loved England, loved London and made a real thing of showing interest in me, and what I was about.

"It was pretty flattering. But I don't think I could date Madonna. I mean, it's Madonna. She's full on. I don't think you could ever relax if you were dating her."